Alarm-gong



(No Model.)

A. E. BRIGGS.

ALARM GONG.

UNITED STATES PATENT OFFICE.

ARTHUR E. BRIGGYS, OF BOND HILL, ASSIGNOR TO POST & CO., OF CINCINNATI, OIIIO.

. ALARM-GONG.

SPECIFICATION forming part of Letters Patent No. 434,578, dated August 19, 1890.

Application filed February 17, 1890. Serial No. 340,769. (No model.)

To all whom it may concern:

Be it known that I, ARTHUR E. BRIGGS, a

citizen of the United States, residing at Bond I-Iill, in the county of Hamilton, State of Ohio,

. have invented anew and useful Improvement in Alarm-Gongs, of which the following is a specification.

My invention relates to portable alarm-y gongs; and it consists in the several parts and combination of parts hereinafter more specifically pointed out and claimed.

I have illustrated my invention as applied to street-car alarm-gongs.

Figure l is a frontelevation of a street-car provided with one of my improved gongs. Fig. 2 is a rear elevation of a gong. Fig. 3 is a section of the same.

A is the front board of a street-car; B, a gong; c, a sounder; D, a gong-frame carrying the sounder, which is shown as mounted upon a projection d by means of a tap e. The frame is also provided with a projection d', upon which is pivoted abell-crank f, upon one arm of which is a hammerf, the other arm of which is adapted to be operated by an arm of second bell-crank g, pivoted at h. The other arm of bell-crank g is provided with a handle 'L'. The bell-crank g is provided With a T- shaped projection g', adapted to engage the frame to limit the stroke of the handle.

For the purpose of att-aching the gong` in position the frame is provided with ears d2 d2, adapted to take over the front board of a car, as shown iu Fig. l. The gong may be attached in position by any suitable device. By operating the handle o' the hammer is forced against the sounder through the intervention of the two levers, (shown as bell-cranks in the drawings,) and'falls by gravity from the sounder when a stroke has been made.

By using my invention one gong only is needed on a car, as it can readily be transferred from onel end of the car to the other.

I claim- T e combination, in a portable gong for stree -cars, of a vertical frame, supportingears thereon adapted to engage the front board of the car, whereby the frame may be readily attached to or detached from the car, a sounder carried by the frame in substantially avertical position, a hammer-lever pivoted to a projection on the frame intermediately between the supporting-ears and the gong center, a handle-lever actuating the same, and a stop to limit the length of the stroke, substantially as and for the purpose specified.

ARTHUR E. BRIGGS.

Witnesses:

ISAAC KINSEY, AUGUST F. HERBSLEB. 

